In today's science classrooms, with the integration of the Next Generation Science Standards (NGSS), teachers are encouraged to guide instruction through real-world phenomena and promote critical thinking through inquiry-based learning that helps students learn the reasoning and practical skills of scientists, rather than just rote memorization of scientific facts (NGSS Lead States, 2013). In alignment with NGSS and funded by the U.S. Department of Education, ChemVLab+ offers a series of freely available, online activities for high school students focused on what chemists actually do: analyze and explain observable events by connecting them to invisible processes at the molecular level. Using authentic scenarios presented through animated videos, the activities allow students to perform experiments in a virtual chemistry lab and engage in problem solving with immediate feedback.